Alg8.2

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The first term of an Arithmetic Progression (A.P) is -2\, and the 10th term is 16\,.Determine the 15th term.

The formula for the general term of an AP involves two variables a,d\,.Given that a=-2,t_{10}=16\,

Thus t_{10}=a+9d=16,-2+9d=16,9d=18,d=2\,

Therefore the fifteenth term is a+14d=-2+14(2)=26\,


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